Nichrome is an alloy of Cu-Ni.a O Cu-Zn.b O Cu-Ni-Zn .c O Ni-Cr.d O

Q: → PBSO4 + MnOq d PbO, + Mn²+ + SO,²- - e HNO, + Cr,O,²- → Cr* + NO;

A: The given reaction is: In the given reaction, Pb is getting reduced from +4 to +2 and Mn is getting…

Q: The ionized form of ferrous oxide is a. Fe*2: 02 O b. Fe*3: 0-2 O c. Fe*2: 03 o d. Fe*3, 03 +3.

A: In this question, we will see what is the ionized form of Ferrous Oxide  You can see details…

Q: Which one of the following elements is an example of a transition metal in period 4? а. Carbon O b.…

A: Transitions metals are also known as d-block elements. These are present in the middle of the…

Q: If your base metal is Fe, which among the following metals can you use as a noble coating for…

A: If your base metal is Fe,the metal is used as coating for protecting it, the metal is given below.

Q: Metal workers designed best alloys. Where can the development of modern chemistry be traced to

A: Alchemists laid the groundwork for modern chemistry by conducting experiments and recording the…

Q: Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one…

A: Two main reasons that elaborate the uncommon use of aluminum in the last century can be listed as…

Q: Determine the weights of raw materials needed to prepare 75g samples for the given recipe of glass…

A: Given that -  Total mass of the sample = 75 g  Mole percentage of different recipes are -  Na2O =…

Q: Which of the following is classified as a metal? Ar O 02 Са O Ca OF

A:

Q: a Pzonite hhe Durte None q thue 8keltel CIlner bond) 8 tmeture.

A:

Q: D- A sample of non-pure magnetite( Fe304) weighed 0.5g convert by the chemical reaction to Fe203…

A:

Q: An element has a density of 10.25 g/cm3 and a metallic radius of 136.3 pm. The metal crystallizes in…

A: iven,  Density of the solid = d = 10.25 g/cm3  Radius = r = 136.3 pm  Lattice = Body centered cubic…

Q: II + Ca(OH), - D

A:

Q: Which one of the following compounds is chromium (X) oxide? O Cr2010 O Cr100 O CrO5 O Cro

A: IONIC COMPOUNDS: When charged particles or ions combine to form a chemical compound, it is called as…

Q: When Au comes into contact with Ag, it creates a solid solution that is called a substitutional…

A: Given: mass of Au = 10 % mass of Ag = 90 % Pure Au has a density of 19.32 g/cm3  pure Ag has a…

Q: dy 4.1. MetaliIs an element that readily produces positive ions (cationsl and has metallic bonds to…

A: Heavy metals refers to any metallic chemical element that has relatively high density and is toxic…

Q: SICI4 has the lowest bp in comparison with group IV element tetrachloride Ta F.b

A: False.

Q: 22. Copper is obtained from sulfide ores through a two-step process consisting of roasting the ore…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Bricks are used in construction. They are O ceramic materials alloys O composites O polymeric solids

A: Answer is ceramic material.

Q: Fe,0.t 3 Ha ca) a) AH" a AG at 230°C

A: The reaction given is, => Fe2O3 (s) + 3 H2 (g) → 2 Fe (s) + 3 H2O (g)

Q: Periodic Table of the Elements Pu He BCNO F Ne Al Si P S CI Ar Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se…

A: We have to explain the bonding between sodium and chlorine.

Q: The less electropositive element is: A. Na B. Be C. Li D. Mg

A:

Q: Q14. Which of the following correctly represents the third tonization of aluminum? A. AI'ie) • le--→…

A: Ionisation energy is defined as the minimum amount of energy required to remove the most loosely…

Q: Which one of these elements is a transition element? Select one: a. Pb b. Sr c. H d. Fe e. As

A:

Q: 21 20 JgVI Jaåll :The application of (N-8) rule for group IV elements indicate That silicon is…

A: Octet Rule: Octet rule states that an atom which has eight (8) electrons in its valence shell is…

Q: <p>Describe three typical properties of metals.

A:

Q: Which element would most likely be a shiny solid at room temperature and have a high density? A. Kr…

A: Generally metals are shiny solid at room temperature and have a high density.

Q: Make the structure based on the Blomstrand-Jorgensen Theory and Werner Theory also calculate the…

A: Effective atomic number (EAN): According to this rule,the ligands donate t+ electrons to the central…

Q: Chemistry How could you explain the difference in early and late transition metals using nickel as…

A: Generally, early transition-metals have strong resistance to undergoing reductive elimination to…

Q: Which one of the following has the smallest radius?   a. P b. I c. Fe d. Cl e. Na

A: On going left to right in periodic table radius decreases While on going top to bottom in periodic…

Q: 2. Which statement about silicon is false? It is a metalloid. b. It behaves as a semiconductor when…

A: Silicon is p-block element with atomic number 14 and symbol is Si

Q: a) Please calculate the theoretical lead mass can be obtained from 10 t lead concentrate containing…

A: To calculate the theoretical lead mass in 10 t lead concentrate  To calculate the theoretical…

Q: Which elements are post-transition metals? A. Europium, Gadolinium, Terbium B. Uranium, Neptunium,…

A: Post-transition metals are also termed  as the poor metals which are a group of metals on the…

Q: Of the elements listed below, which one would be a poor conductor of heat and electricity? a) Mg b)…

A: Which element among the following Mg, CS, Se, Sn & Zn   is poor conductor of heat and…

Q: What is used to test for chlorine? * A a glowing splint B damp litmus paper O C limewater

A: what is used to test for chlorine has to be given,

Q: Which of the following is an alkaline earth metal? A.K  B.Cu  C.Mg  D.Na  E.Al

A: The elements that comes in group 2 of the periodic table are called alkaline earth metals.  They are…

Q: Which element is a transition metal?(a) Ca (b) Pb (c) Xe (d) Cr

A:

Q: Determine the weights of raw materials needed to prepare 75g samples for the given recipe of glass…

A: Mass of Na2O is, Mass = (25% × 75 g) ÷ 100% Mass = 18.75 g   Mass of B2O3 is, Mass = (25% × 75 g) ÷…

Q: Fe2* + Cr,0,- Fe+ + Cr**

A: Fe2+ + Cr2O72-  ---> Fe3+ + Cr 3+ 1.) Oxidation Half Reaction:             Fe2+  --->  Fe3+…

Q: a) Na+ b) S-2 c) Al+3 d) Fe+2 e) Fe+3 f) As-3 g) Be+2 h) H-

A: Since you have asked a question with  multiple sub-parts, we will solve  first three sub-parts for…

Q: MCQ 119: When magnesium is burnt on Bunsen burner it gives flame of color A. bright white B. off…

A: In this question we have to find out the color of flame when the Magnesium is burnt on Bunsen…

Q: 나 n 4. ar 3.27

A: PH = - log (H+) This question can be  solved by this formula which is given below

Q: 25. An oxide in Period 3 reacts with NaOH and HCl to form salts. What is the formula of the oxide A…

A: An oxide of period 3 of the periodic table is reacting HCl i.e. acid and NaOH i.e. a base, so the…

Q: Simplified explanation of nitride and carbon in minerals, simplified explanation of the mechanism of…

A: Explanation- @ Nitride in minerals-       In chemistry, a nitride is a compound of nitrogen where…

Q: Why is color not an accurate property to use to identify most minerals?

A: Color is not an accurate property to use to identify most minerals.

Q: Make the structure based on the Blomstrand-Jorgensen theory and calculate the effective atomic…

A: Blomstrand proposed that ammonia molecule could link together as CH2 chains in hydrocarbons, and…

Q: Choose one or more: O A. CO,(g) +C(s.graphite) → 200(g) O B. C(s,graphite) +O,(g) –→ Co,(g) O C.…

A: ∆Hrxn is the standard enthalpy of reaction. This is calculated by subtracting the sum of standard…